Printing-machine



J. A. LOYSTER.

PRINTING MACHINE! APPLICATION FILED IUNEZB. I919.

1,366,012. Patented Jan. 18, 1921.

3 $HEETS-SHEET L7 canto;

J; A. LOYSTER.

PRINTING MACHINE.

APPLICATION FILED JUNE 23.1919.

1,366,012. Patented Jug-1 8, 1921.

3 nucuto'z N QYZW J. A. LOYSTER.

PRINTING MACHINE.

APPLICATION FILED IUNE 23. 1919.

1,366,012. ramnid Jan.1 8,1921.

-, SHEETS-SNEET 3.

' JAMES A. LO'YSTER, OF (iAZENOVIA, NEW YORK.

PRINTING-MACHINE.

Specification of Letters Patent. Pate t d J 8, 2i

Application filed June '23, 1919. Serial No. 306,145 r j To all whom itmay concern: Be it known that I, JAMES A. Lorsrnn, a citizen of theUnited btates, and residing at Cazenovia, Madison county, State of NewYork, have invented certain new and useful Improvements in Printing-Machines, of which the following is a specification.

This invention relates to printing machines and more particularly tosuch machines adapted to print and cut bottle caps from a strip of sheetmaterial fed through. the machine. In my Patent No. 818,699

granted April 24, 1906,- a machine of the type referred to is described.The present invention is an improvement over the patented invention andconsists principally 1n the provision of a machine adapted to print intwo or more colors; means to adjust the printing means relative to eachother and the cutting means to secure accurate reg1ster; a novelconstruction for carrying the printing means so that. it. may beadjusted longitudinally of the machine without disturbing the mechanismfor driving the printing means; a device for storing energy from theprinting means during a portion of its movement to give out said energyduring another portion of the printing means movement, thereby reducingthe power required to operate the machine and eliminating vibration andjerky or uneven running of the machine; and a positively nonoverrunningdevice for feeding the sheet intermittently through the machine. Otherobjects and features of novelty will be apparent from the descriptiontaken in connectionwith the drawings, in which,

Figure 1 is an elevation showing one side of a machine embodying thepresent invention; j

Fig. 2 is an elevation of the opposite side of the machine; j

F ig. 3 is a transverse sectional elevation taken substantially on' theline 3--3 of Figs. 1 and 2; r a

Fig. 4; is a somewhat diagrammatic plan view illustrating thearrangement for adjusting the frame carrying the printing mechanismlongitudinallyof the bed of the machine; and a Fig 5 is a sectional viewtaken substantially on the" line 5-5 of Fig. 2.

., Referringto the drawings the reference numeral indicates the bed of amachine supported by the legs 11. As shown 1n Fig.

3 thisbed mayconsist, of two parallel spaced members of channel sectionsuitably connected at their ends. The operative parts of the machine areall supported by the bed, the principal parts comprising a plurality ofprinting mechanisms A and a cutting mechanism B.

In the machineillustrated there are two printing mechanisms which areexactly alike except that the ink reservoir of one is located oppositelywith respect to the other. Hence the description of one of these mechamsms'will be sufiicient. It is one of the prlncipal objects of thisinvention to mount the printing devices so that they may be adjustedlongitudinally of the bed for the purpose of obtaining accurateregister. As shown an inverted U-shaped frame straddles the bed andcomprises the leg members 12 joined by the top or connecting member 13which'carries a platen 14. The frame is mounted for longitudinallysliding move ment on the bed and for this purpose the opposite sides ofthe bed have the horizontal dovetail guides 15 secured thereto as bymeans of the screws 16, the legs of the frame being formed withlongitudinal dovetail guideways 17 having the guides fitted therein. Asshown in Figs. 1 and 2 the lower central part of the legs of the frameis cut away to provide clearance for parts which extend outside of thelegs and to form a pair of prongs 18, the lower ends of which are bentat right angles to provide abutments or stops 19 for a purpose presentlyto be described. The legs 12 have the vertical spaced strips 20 securedthereto as by means of screws 21 formin uides for the i b t! upwardlyextending arms 22, these arms at their upper ends carrying thenon-rotative shaft 23, which has the irrevoluble cylinder 2 lmountedthereon. A portion of this cylinder is slabbed off to provide a flatsurface 25 for the impression means. At each end of the cylinder is aframe 26, these frames being connected by the rods 27 and carryinginking rollers 28. Between each arm 22 and the adjacent frame 26 is asprocket 27 connected to the said frame for rotation therewithQ Thecylinder is mounted for vertical reciprocating movement to and from theplaten 14. The mechanism for accomplishing this comprises a shaft 128mounted in fixed bearings 29 on the under side of the bed. The-oppositeends of this shaft have the cranks 129 and crank pins .30. andconnecting. rods 31 operatively join each crank to the cylindersupporting shaft 23. Thus as the shaft 128 is revolved the printingmechanism will be reciprocated up and down. At the same time theinkrolls are caused to revolve around the cylinder b chains 32 passingaround the sprockets 2 and sprockets 33 mounted on the crank pins 30,but being held against rotation relative to the said pins. For thepurpose of maintaining proper tension in the chains, each connecting rodcarries the adjustable idler sprockets 34.

As shown in Figs. 1 and 2 a U-shaped rod has its bottom or base portion35 carried by the arms 22 and the legs 36 and 37 extending throughvertical apertures in the abutments 19. Each of these legs has a spring38 surrounding the same, one end of which rests against the abutment 19and the other end of which abuts the portion 35 of the rod. It will beseen that these springs provide means for storing up energy receivedfrom the downward movement of the printing mechanism and that the energyis given back during the upward movement, thereby equalizing the powerrequired to run the machine, and eliminating vibration and jerky action.The crank shafts 128 carry the intermeshing spur gears 39, one of. whichis driven by. a gear 40 on the driving shaft 50 of the machine, thisshaft being carried in bearings on the under side of the bed and havinga driving pulley 7 9 at one side of the machine. The gear 40 also drivesa gear 41 on a crank shaft 42 which through the connecting rods 43operates the cutting mechanism B.

The cross pieces-13 of the frames carrying the printing mechanism havethe upwardly extending supports 44which carry ink reservoirs 45. Theconstruction and operation of the inking rollers and the means fortransferring ink from the reservoir to the cylinder are fully describedin my prior patent previously referred to, and as the details thereofconstitute no part of the present invention, further description isunnecessary.

As shown in F igs. 3 and 4 each of the cross members 13 of the frameshas a lug 46 onthe under side thereof located between the side membersof the bed.

A rod 47 extends through one end of the bed and is threaded through oneof the lugs 46, a hand wheel 48 being provided on the opposite endthereof so that by turning the same the "printing frame may be adjustedlongitudinally of the bed. Asimilar rod 49 is arranged parallel to therod 47 and is threaded' through the other lug 46 and carries a like handwheel 48. i

' In theoperation of the machine a sheet or Web of proper material, suchas thin card- -board,'is delivered to the .right hand end of atllemachine as viewed in'Fig. 1. This sheet passes through the feed rolls 50and 51, thence through the printing mechanisms, the cutting mechanism B,between the feed rollers 52 and 53 to the roller 154 on which theremnant is wound up. For the purpose of advancing the sheetintermittently through the machine, the low r rollers 51 and 52 arerotated step by step. This motion i i'lerived from a ratchet mechanismmounted on a shaft 54 extending transversely of the bed, the ratchetmechanism being mounted on one side of the bed and the shaft at theother having a change gear 55 which meshes with a gear 56 carried on anarm 57 pivotally mounted on a shaft 58, which has secured thereto a gear59 in mesh with the said gear 57. The shaft 58 is arranged below theroller 53 and to the right of roller 52 and extends across the bedhaving at its opposite end, a bevel gear 60 in mesh with a similar gear61 on a shaft 62 extending longitudinally of the machine. The oppositeend of this shaft has a bevel gear 63 in mesh with a bevel gear 64 onthe shaft of roller 51. As the rotation of shaft 58 is communicated toroller 52 it will be seen that the transmission just described connectsthe two sets of feed rollers so that they will rotate at proper speedsto feed the sheet through the machine. roller 52 the shaft 58 carries apinion G5 in mesh with a gear 66 at one end of the roller 53 and thislatter gear meshes with a gear 67 on the lower roller 52 so that the tworollers are caused to rotate with the same angular velocities.

Referring now to Figs. 2 and 5 the crank pin 68 on one end of the crankshaft 42 has an arm 69 and this arm is connected by means of a link 70to a pawl 71 pivoted on an arm 72 mounted on the shaft 54. The end ofpawl 71 is formed with tooth like projection 73, which is adapted. toengage in the spaces between the teeth of the ratchet gear 74. The teethof this gear 74 are formed similar to the usual gear teeth and the tooth73 on the pawl is designed to tightly fit in the spaces so that there isno back lash between the pawl and the ratchet gear. The arm 72 ismounted on the shaft 54 so that it is frictionally held from rotation.For this purpose a split clamp nut 75 is threaded on the end of shaft 54and frictionally clamps the hub of arm 72 be- For the purpose ofrotating l. l, l)

Cii

against the frictional resistance tending to prevent rotation thereof.When the .link reverses its movement, the pawl 71 will first be turnedon its pivot to cause the tooth 73 to engage a space in the ratchet gear74, then continued movement of the link will carry the arm to the leftas viewed in Fig. 2, thereby through the pawl turning the ratchet gearin a clockwise direction. When the link 70 reaches the end of itsmovement in this latter direction any overrunning of the ratchet geardue to the momentum-of the parts will be positively prevented for thereason that the tooth 73 on the pawl will prevent such overrunningmotion. It will be seen therefore this positively non overrunningratchet device is a very important element of a combination comprising aplurality of printing mechanisms, a cutting mechanism and means forfeeding a sheet step by step through said mechanisms, for the reasonthat the feeding movement of the sheet is always the same with theresult that accurate register of the printing mechanisms and the cuttingmechanism are obtained.

In the operation of the machine the driv- 'ing shaft 50 is rotated bymeans of a belt on pulley 79. This drives the feed rolls step by stepthrough the positively nonoverrunning ratchet mechanism so that thesheet 1S intermittently fed through the plurallty of printing mechanismsand the cuttin mechanism. The printing cylinders are also operated fromshaft 50 and are given a vertical reciprocating movement. As shown oneof the printing devices might print in one color and the other inanother and in order to have the successive printings register the handwheels 48 may be operated to properly adjust the printing mechanismsrelative to each other and relative to the cutting mechanism. It will beob served that this adjustment of the printing mechanisms may be madewhile the machine is in operation for the reason that it does not in anyway interfere with the drivingunderstood that the invention is notlimited to the structure illustrated but includes any chan es andmodifications which may come within the scope of the appended claims.

Having thus described my invention what is claimed. as new and desiredto be secured by Letters Patent is 2- 1. A machine of the classdescribed including in combination, a bed, an inverted U-shaped framestraddling said bed, impression means arranged over said frame, armssupporting said impression means guided for vertical reciprocatingmovement on the legs of the frame, means to reciproca te said impressionmeans including a trans verse crank shaft mounted in bearings in the bedand a connecting rod at each side of the frame joining the shaft andimpression means, and means to adjust the frame longitudinally of thebed.

2. A machine of the class described including in combination, a bed, aninverted U-shaped frame straddling said bed, ways on the sides of thebed cooperating with the legs of the frame to support the latter forlongitudinal movement, impression means arranged over said frame, armssupporting said impression means guided for vertical reciprocatingmovement on the legs of the frame, means to reciprocate said impressionmeans including a transverse crank shaft mounted in hearings in the bedand a connecting rod at each side of the frame joining the shaft andimpression means, and a threaded rod carried by the bed engaging a nuton the frame whereby the frame may be adjusted longitudinally of thebed.

A machine of the class described including in combination, a bed, aninverted U-shaped frame straddling the bed and sup ported thereon foradjustment longitudinally of the bed, a platen and ink reservoir carriedby said frame, impression means arranged over said platen, arms carryingsaid impression means guided for vertical reciprocating movement on thelegs of the frame, means to transfer 111k from the reseri JAMES A.'LOYSTER.

